diff --git a/src/mainboard/google/reef/variants/snappy/devicetree.cb b/src/mainboard/google/reef/variants/snappy/devicetree.cb
index 6d1c9ef145..2b47c5727d 100644
--- a/src/mainboard/google/reef/variants/snappy/devicetree.cb
+++ b/src/mainboard/google/reef/variants/snappy/devicetree.cb
@@ -112,6 +112,12 @@ chip soc/intel/apollolake
 	# Minimum SLP S3 assertion width 28ms.
 	register "slp_s3_assertion_width_usecs" = "28000"
 
+	# Override USB2 PER PORT register (PORT 1)
+	register "usb2eye[1]" = "{
+		.Usb20PerPortPeTxiSet = 7,
+		.Usb20PerPortTxiSet = 0,
+	}"
+
 	device domain 0 on
 		device pci 00.0 on  end	# - Host Bridge
 		device pci 00.1 on  end	# - DPTF